GB656286A - Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose - Google Patents

Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose

Info

Publication number
GB656286A
GB656286A GB26677/48A GB2667748A GB656286A GB 656286 A GB656286 A GB 656286A GB 26677/48 A GB26677/48 A GB 26677/48A GB 2667748 A GB2667748 A GB 2667748A GB 656286 A GB656286 A GB 656286A
Authority
GB
United Kingdom
Prior art keywords
per cent
viscose
fibres
yarns
bath
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB26677/48A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzo Nobel UK PLC
Original Assignee
American Viscose Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by American Viscose Corp filed Critical American Viscose Corp
Publication of GB656286A publication Critical patent/GB656286A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
    • D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Artificial Filaments (AREA)

Abstract

Regenerated cellulose fibres and yarns are obtained by extruding a normal viscose composition, to which there has been added 1-5 per cent of an organic water-soluble material consisting essentially of urea, into an aqueous acid coagulating and regenerating bath. Normal viscose is stated to be one having a sodium hydroxide content of 6-8 per cent, based on the weight of the viscose, a cellulose content of 6-8 per cent, and a salt point of 3-6. The fibres and yarns produced have high breaking toughness and low average stiffness (ratio of the tensile strength at break to the elongation at break). The urea may be added immediately after the production of the viscose, or during ripening, or immediately before spinning. The spinning bath may contain 8-12 per cent of sulphuric acid, 2-5 per cent of zinc sulphate, and 16-20 per cent of sodium sulphate, and the temperature of the bath may be 45-55 DEG C. In an example, 2.5 per cent of urea is added to viscose having a salt point of 3, and the solution is then spun into a bath containing sulphuric acid and zinc and sodium sulphates. The yarn obtained is stretched by 75 per cent. In other examples, the viscose has a salt point of 5.1-5.9. The fibres and yarns obtained may have tensile strength of 2.7-3 grams per denier and elongation of 17-23 per cent. They may be used in making tyre cords.
GB26677/48A 1947-11-19 1948-10-13 Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose Expired GB656286A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US656286XA 1947-11-19 1947-11-19

Publications (1)

Publication Number Publication Date
GB656286A true GB656286A (en) 1951-08-15

Family

ID=22064032

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26677/48A Expired GB656286A (en) 1947-11-19 1948-10-13 Improvements in or relating to the manufacture of fibres and yarns of regenerated cellulose from viscose

Country Status (1)

Country Link
GB (1) GB656286A (en)

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